Answer:
Step-by-step explanation:
We have been given that a certain function is an inverse proportion. We are asked to find the formula for the function if it is known that the function is equal to 12 when the independent variable is equal to 2.
We know that two inversely proportional quantities are in form 
, where y is inversely proportional to x and k is constant of variation.
Upon substituting 
and 
in above equation, we will get:
Let us solve for constant of variation.
Now, we will substitute 
in inversely proportion equation as:
Therefore, the formula for the given scenario would be .
0.2 is a rounded off answer while 0.201 is the exact answer that's not rounded off.
Answer:
Step-by-step explanation:
Usually, this wording means the decrease is proportional to the current price, characteristic of an exponential function.
__
The decay factor is 1-(decay rate), so is 1-0.15 = 0.85. After 3 years, the value has been multiplied by this factor 3 times:
$50×0.85³ ≈ $30.71 . . . . cost in 3 years
_____
<em>Comment on percent per year</em>
Less often, the indicated decrease is intended to be <em>that percentage of the original price</em>. The result is that the price decreases by a constant amount each year, a linear decrease. This condition most often arises in conjunction with figuring depreciation in value for tax or accounting purposes.
The upshot is that you always need to be careful to understand what the base of a percentage is intended to be.
Multiply the base × height to find the area of each
Answer:
1:2
Step-by-step explanation:
